Too late, CA already did that, in fact the stooges running the state have already admitted they don’t want Trump supporters, conservatives, middle class families here. They’ve long since made criminals of every description, their top priority.
Next up: Passport control at border stations. You have any conservative sticker on your car means no admittance. But then, who’d want to go to CA in the first place? If I have to do a layover on a flight I stay at the airport motel, don’t even venture out. Do the bar scene at the motel and forget I was ever there.